Как сделать, чтобы после нажатия на пункт смена активного элемента происходила по-другому?

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      var link = $(`.conversion__link[href='#${entry.target.id}']`);
      if (entry.isIntersecting) {
        // в зоне видимости появился заголовок
        // делаем все пункты не активными
        $(`.conversion__link`).each(function() {
          $(this).removeClass('conversion__link--active');
        });
        // и делаем активными нужные
        link.each(function() {
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        })
      } else {
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          $(this).removeClass('conversion__link--active');
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    rootMargin: '0px 0px -50% 0px',
    threshold: 0.3
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  let titles = $('.title');
  for (let title of titles) {
    observer.observe(title)
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  $('.conversion__nav').on("click", ".conversion__link", function() {
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    elems.each(function(index, item) {
      $(item).removeClass('conversion__link--active')
    });
    $(this).addClass('conversion__link--active');
    var target = $(this).attr('href');
    $('html, body').animate({
      scrollTop: $(target).offset().top - $('.conversion').height()
    }, 800);
    return false;
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});

.conversion__link {
  color: #fff;
}

.conversion__link--active {
  color: orange;
}

.visible-links {
  position: fixed;
  top: 0px;
  margin: 0;
  padding: 0;
  width: 100%;
  list-style-type: none;
  background-color: #292929;
}

<div class="conversion">
  <div class="conversion__nav">
    <ul class="visible-links">
      <li class=""><a class="conversion__link conversion__link--active" href="#c1">test 1</a></li>
      <li class=""><a class="conversion__link" href="#c2">test 2</a></li>
      <li class=""><a class="conversion__link" href="#c3">test 3</a></li>
      <li class=""><a class="conversion__link" href="#c4">test 4</a></li>
    </ul>
  </div>
</div>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<h3 class="title" id="c1">title 1</h3>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>


<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<h3 class="title" id="c2">title 2</h3>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>


<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<h3 class="title" id="c3">title 3</h3>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>


<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<h3 class="title" id="c4">title 4</h3>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>


<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Facere quae reprehenderit, voluptatum autem provident libero eos magni veritatis ut eaque officiis voluptatem expedita ad aspernatur ipsam cumque sint aut commodi.</p>

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